Improvement in crimping-machines



' 2 Sheets-eSheetvl. Y S. W. JAMISON. Boot and Shoe Orimper. No. 99,906.

Patented Pebr 15, 1979.

WITNESSES.

2 Sheets-Sheet 2. S. W. JAMIS'O-N.

l Boot and Shoe Crnipr. No. 99,906. Patented Feb l5, 1870.

N. PETERS. Phnxo-mnugmpher. washingtan. D. C.

llttited gante j attent @Milice SAMUEL W. JAMrso-N,

or New YORK, n.v Y.

Letters Patent No. 99,906, dated February 15, 1870.

IMPROVEMENT IN CRIMPINGMACHINES.

The Schedule lreferred to in these Letters Patent and making part of the same lto the accompanying drawings.

My invention relates to the crimping-machine for which Letters Patent No. 64,538 were granted to me on vthe 7t`h day ot' May, 1867, The 'machine in which my presentinvention is contained posesses the general features which characterize the patented machine; that I; to say, it has a stationary crimping-form, colnbined with movable jaws supported by bracltetsattachedto a vertically-moving cross-head, andsliding in laterally seltladjusting ways; but it also embodies greatly im'- proved: features, which give it a practical value far exeeeding the old n-lachine, and which, in many respects,

admit of its bei-ng employed to more advantage.

My improvements relate First, to the gearing for communicating motion to the crimping-plates.

Second, to the construction and` arrangement of the crimping-plates or jaws, and their combination with the brackets which support them.

Third, to the arrangement of the crimping-form or tree, and its combination with the movable jaws.

Fourth, to a system of levers for lightenil'lg the pressure of the crimping-jaws upon the leather.

Fifth, to other features which will be'hereinafter specined.l i

lhe nature of my invention, and. the manner in which the same is or may be carried into eti'ect, will be' readily understood by reference to the accompany-v ing drawings, in whichy Figure l is a perspective view, and

' Figure. 2 a rear-elevation ot' a machine made in accordance with my invention. A

The remaining figures represent views of detached parts, which will be referred to in the course ot' this specitication.

I. Tite Gearing for Impartiiig an. np-dmZ-down Morenu'nt to the Jaws.

The object of this portion of my invention is to provide a means whereby, whenl the jaws havemoved thel proper distance up or down, theymay be automatically thrown out of gear and their motion arrested, the trip and clutch by which this result is attained Vbeing soarranged that, although the main or driving-wheel revolves continually in one direction, the movement 'of the jaws may be either reversed orentirely arrested by the sluiting of the clutch. My further object is to so combine the clutch with the gears for moving the jaws upand down that the jaws shall `move upward at a greater rate of speed than that at which they move downward toward or upon the leather to bc crimped'. To att-ain these objects, I proceed as follows:

The rack A ofthe cross-head Bis fitted in a recess in the frame o f the machine, as descrhed'in my former patent, and engages with a pinion, 1, on horizont'al shaft 2, mounted in bearings on the top of the frame.

On the other end of the shaft is a wheel, 3, with oblique teeth, which engages with the worm 4 on the upright shaft 5, which is supported in suitable bearings by the side of thc machine. On this shaft two bevel-gears are loosely mounted, the upper gear, 6, engaging with the large bevel-toothed wheel S on'thc horizontal shaft l0,"

which carries the pulleyll, which receives motion from the prime mover; and the lower gear, 7, engaging with the pinion 9, mounted also on shaft 10. y

Between the two gears and 7 is the clutch O,`w.hich is iitted upon the shaft, and is so held to it bya spline, or equivalent device, that while it will communicate a rotary movement to, it is also free to slide up anddown on the shaft.

'.lhc size of the clutch is so proportioned to the distance between the. two gears 7 that the clutch may be, either held out of contact with both ofthe gears, in which case the shaft 5 would have no motion, or be thrown into connection with either gear, according to the direction in which the shaft 5 is desired to revolve, the usual teeth bein-g formed on the ends ot' the clutch, and the contignous faces of the gears to admit of this connection, as shown in the. drawing. y

Under the arrangement described, when the clutch is out ot' connection with both gears, as seen in lig. 1,'

the gears 6 and 7, supposing the pulley to be moving in the direction ofthe arrow, will revolve loosely upon: the shaft 5, and no movement will be connnunicated to the cross-head. But if now the clutch be. thrown into connection with the upper gear, the shaft will revol ve, causing the cross-head, through the intermediate gears l 3 4 and rackA, to rise in the frame. If, on the contrary, the clutch he thrown into connect-ion with the lower gear 7, the shaft will be caused to revolve in the opposite direction, and the cross-head, instead ot' ascending, will descend. Thus, by this contbination of theI two gears (j 7, which I call reversing gears, with the clutch and crossfhead, the movement of the latter can be instantaneously'reversed or entirely arrested, desired.

As the wheel S, which actnates the upper gear 6, is ot' much greater diameter than the ypin-ion 5)., which actuatcs the lower gear 7 the upper gear will revolve at a proportionately greater rate ot' speed than thelower, so that the cross-head ,will rise much morel rapidly than it descends, while, ou thc other hand, although the cross-head or the jaws which it carries have a decreased speed during their descent, they have increased power, thus meeting the conditions required for their use; tor, while they may move rapidly upward al'ter the. crimping has been ell'cetcd, they must, in descendingr upon the leather, move slowly, but with power, in order to crimp pcrleetly, and atthe same. time without injury to the material.

llu order to re'nder the action ot the clutch to some extent automatic, I combine with it a lever, a., pivoted to the frame of the machine, and carrying on one. end a pin or roller stud, which tits in an annular groove in the clutch. The othe arm of the lever tits in a'slotor suitable recess provided for it on the sliding triprod b, which is capable ot' moving up and down in heal'- ings attached to the frame ofthe machine.

The rod carries two tripping-fingers,c` c,.located in such relation to a correspondingtripping-linger, d, ou the cross-head, or other part moving in unison therewith, that when the cross-head in its ascent is raised sutticiently above the crimping-thun, the linger d4 will come in contact `with the upper finger c, aud raise ythe rod l1. I'lhis movement oi" the rod will actuate thelever to depress the clutch so as to throw it-"out-oi'conneetion with the upper gear (i, but notfso as to throw it into connection with the lower gear-T, so that the movement-ot' the cross-head ism-rested until it is again required to descend, when, by liltiug the rod b h v means (.t` the handle b', which it carries, the clutch will be depressed until itis throwniutoconneetion with the lower gear 7. .lhecross-hezul will now descend, continuingto move until the finger (Z presses upon the lower tinger c, so as to depress the tripping-rod and throw the clutelrout of connection willi 'the lower gear. rlhe movement of the cross-head thcu ceases,aud it remains at rest until the rod b, by means of' its handle, is depressed sutieieutlvtiu' to throw the clutch in connection with the upper gear, when the cross-'head will rcronuucuee its Yascente .Y

'lhe tripping-rml is maintained in whatever position it majI happen to he by means ol'aspriug, a', or other iriction device, applied between the lever o and `frame, as shown in thefdrawing, or in any other suitable manner.

The ohjectl have in view in this part ofmy invention is to renlerthc jaws' adjustable; tirst, to conform `to the position ot" the crimping-term 5 second, to adapt themselves to inequalities inthe leather; third, toadmit of their heilig moved bodily away from or toward each other, according to the thickness ot'the material to be crimped.

My further objectisto so arrange the crimpingformer that it may be adjusted to crimp at varying angles tothe hechas hereinafter explained.

lhe crimping-jaws or plates are sliown at I) D. The one jaw aml the mechanism connected wit-l1 the same, are the counterparts of the other ja-w audits operative mechanism, so that a description for one will answer i'or both.

lhe form; of the jaw is shown in fig. l1, representing a. l'rout view, and tig. 5, representingr a rearview. The i'aee of' the jaw is corrugated in any ordina-ry or suitable manner, and it' desired, there is provided at the lower part or heel ot' the .jaw a sliding-clamp, e, which is held back by a spring so as to be about flush with the iaee ot' the jaw, as shown in cross section in tig. 3.

This clamp can hc projected from the face of the jaw, so as to take the required hold upon the leather, by mcansot' the camfand lever handle f', the cam "being pivoted to the rear side of the-jaw in such position that, when rotated by means-of'its handle, it may strike against the projecting and` beveled rear end ot' the clamp, which will thus be forced outward, the spring otieriug only a yielding resistence;y

sacos 2 Upon the rear side of the'crimping plate. or jaw is apin, orstnd, y, which constitutes the pivot upon which thejaw can be turned, so as to setI it at vai-ving angles, correspondiiigwith the tilt or Lneliuatiou of the ,stationary crimping t'orm.

fige. Y

'lhe'l'a'tter is provided on each side of the socket with a slot, i, curved in the arc ot' a circle, of which the socket is the centre.

Through each slot passes a clamping screw, il, which enters a screw-tlnjeaded hole, ft2, formed for it in the jaw. VIn order to set Vthejaw at the proper angle, the clamping screws t* are loosened; the jaw is then turned to the proper inclination, and the screws are then again tightened, so as to hold the jaw tightly and immovably to the plate. l, i i

Having thus provided for the tilting in the plane of the jaws, it becomes necessary to provide a means for allowing the jaws to contorni to inequalities in the thickness ot' leather, or l'or causing them ,to act more powerfullyupon anyv desired portion ot' the material. To ,this end the. plaie l is provided ou its rear side with two sockets, 1.', one at the top, the other at tho bottom, and upon the face ot' the plate 1", 7, are formed two-ears, r, correspoinlinglv located, and provided Awith sockets. 'lhc two plates are "placed togetheigsotlmt the four sockets will be in line, and tlieu through the sockets is passed a spindle or rod` l, iig. 3,:which holds the two plaies togetheiyaml allows yat thesiuuertime a limited lateral oscillation ol' the plate E,.and consequently ot the jaw attached to the plate.

The jaw, therefore, is capable ot' nuwemcnt upon thetwonxes and so that it can readilycontorni lo the position ot' the tree, and to theI inequalities ofthe leather." l 4 lu ou er to limit thel lateral vibration of the jaw, thefLplateF is provided with two sl-t crews, m, one ou Veach sii theends ol' which hear a .'iinstthe jaw, as seen,in'lis.'1`aud. lj' adjusting these, screws, the jaw canbeheld more or less in contactwith an) part ot' the leather, as desired. When the crimping-is to take place at one point withoutstraining other portions ot' theiiiateri'al, Ithe screw nearest that point is set up, while the other is retracted, thus allowing the jaw to recede lon one side,but holding it in close Qoutact with the leatherion the other.

Iinoi y,er to set Athe. jaws closer together, whenever desired, leomhine with each jaw a disk, (al, lig. 8, whiclitits upon a spindle, H, whose head is held in 4the plate F. llhe rear side ot' this disk is formed so Yas v`t'o,cofustitiite a double incline, or double helical cam. p .The'spiinlle passes through a socket inthe bracket l''tig."ll), which bracket has formed upon its face a ldouble helical cam, the counterpart ot' that upon the cam-disk (l.-

'lhese two cam-surfaces tit together, and a nut, a, igf, on the end ot' the spindle, serves lto draw the disk aml bracket tightly together, the spindle heilig prevented i'rom rotating while the uut is screwed up, b v means ot' a spline in the socket in bracket L-which fits in a. groove in the spindle. When the nut is loosened, the cam-disk eau be turned bv `suitable means so als to set the one liaw as close `to the other as desired, after which, b vtightening the nut, all the parts willhe drawn together tightlyv and securely.

A scale upon the periphery ot' the disk (see fig. 8,) serves to indicate to what extent the cam should be rot-ated for ditlirentthicknesses ot' leather.

`The bracket slides in the w K, and is connected with the cross-head B by means ot' a rod or arm, L,

hinged both to the cross-head and to the bracket.

.lhe stationarj1 crimping plate or torm is shown at N, figs. 1, 2, and 9. ltl is ol' :my ordinary or suitable shape, and it only dilersti'om ordinary forms inV that The pin fits iu a socket, 71formed in a plate-E,

it is made adjustable, or capable-of being tilted eudwise, so as to elevate the toe more or less, according to the diii'crent shapes of leather or uppers to be crimped; as for instance, in order to crimp the upper of a gaiter boot, the toe must be elevated much more than is required -to crimp a tongue'boot, and a tongue boot requires a greater elevation ofthe toe ofthei'orm than is required to crimp the upper of' an ordinary boot.

To .riiee't these requirements; I, as above stated,-

make the form adjustable, 0r so that it may be tilted endwise. This result may be attained in various ways, but I-find it preferable to support the 'lower part of the form at each end between two plates,` o, provided with a set or holding screw, p, which passes through a cul'ved slot, fr, in the form, so that by loosening the screws the form may be rocked or tilted endwise, to cause a greater or less elevation of the toe.

The curve of these slots follows a circle, of which the horizontal axis g of the jaws is the center, when the heel or lower part of the jaws have about reached the corresponding depression in the stationary form, so that after the form has been adjusted in the desired position, the jaws may be correspondingly adjusted with ease and certainty.

I 1I. The 'Weigh ts for Drawing Tor/ard Each Other .the Hinged and Lateral A (yustable Ways.

The ways K are -hinged at their lower ends to the fratrie of the machine, and connected together and operated by a system of rods and levers, l2, 13, 14, substantially in the manner described in my former patent above specified, and need therefore no further description.

Instead, however, of hanging the weights .15 directly from the ends of the rods 14,as described' in that patent, I now hinge the ends of the rods 14 to levers 16, the ends of which are pivoted or jointed to the frame of the machine, and upon the other ends of these levers are hung the weights 15. The cnd's of the levers are notched so that the weights may be set a greater or lesser distance from the points where the rods 14 are hinged, according to the nature of the work or the degree of pressure required upon the leather. Under the old plan of hanging the weights directly from the ends of the rods '14, it was necessary to change the weights every time. a dlierent degree of pressure was required; but under the present arrangement, /a single weight for each lever will suttice, which can be set further from or nearerto the t'ulcvum, according to the pressure required.` 1V. The System of Levers for Spreading Apart The lVa-ys.

It is necessary at times to spread apart the ways so as to separate vthe jaws; for instance, when the cross head is ascending, and there is no occasion for the jaws to be in close proximity. To this end, l provide at the upper part ofthe machine a system of levers, 17, 1S, 1S), whose arrangement is clearly shown in iig. 2.

The loweuends or arms of the levers 19 bear against the inner faces ot' the ways K, and the longer arm of the elbow-lever 17 is hinged to the connecting-rod 20, which extends down toward the bot-tom of thc machine arid is hinged to a treadle, 21, as seen in tig. l. By pressing on the treadle, the lower ends of the levers 19 are forced outward, thus spreading the ways apart. The arrangement ot' these levers can ofcourse be varied to a considerable exten t, though the arrangement shown is simple and Vwell adapted for the purpose.

V. Alb'ustmcnt of the Ways.

As the extent to which the .ways may approach each other varies in accordance with the nature of the work, it is desirable to provide a means ot'adjustmeut whereby the extent of the movement ot' the ways toward cach other' may be determined and limited. To this end, I

provide set-screws s at the upper part of the'machine,

passing through ears or bearings t, so that their points shall bea-r against the upper ends of the ways. By turning these screws in or ont the extent which the ways may move toward each other can be regulated and limited with great ease and accuracy.

To assist in this adjustment of .the ways pointers or gauges c are placed on thc ti'ame of the machine, so as to exteruid upon or opposite the sides of the Ways. By means of these gauges the parallelism ofthe Ways may be determined or the required adjustment of the set-screws for diii'erent kinds of work may be indicated,

suitable scales being formed on the side oi' Ways opposite or in line with the pointcrs. n VI Adjustment of the Supports or Brackets by which the Crimping-Form or Tree is Held.

ing operation, the leather would, under ordinary eir.

cumstances, be pressedmuch more forcibly on the one side than on the other; butby slightly loosening the set-screws x this defect will befavoided, for, as the jaws descend, if there bev any inequalities in the leather as speciiied, the brackets o will move laterally in the one direction or theother to compensate for the inequalities in the leather, rendering thc form sell'- adjusting and causing the pressure to be equalizcd and evenly distributed upon vboth sides of the form.

VII. The Dripping-Pan and Discharge-Slabs.

In thebottom of the machine immediately under th'e crimping-form is formed a pan, P, which is for the purpose ot' catching the drippings pressed from the leatherduring the crimping operation. From this pan there extends to the rear of the machine a tube or conduit, w, through which the drippings pass, and from which they are discharged into any suitable receptacle, thus preventing anyv accumulation of liquid in the pan.

speciiied the panticula-r means I prefer to employ in order to carry my invention into et'cct, yet thc construction and arrangement of the parts may be varioi' my invention. I do not, therefore, 'limit myself to the precise details herein described; but

What I claim, and desire to secure by Letters Pat cnt, is

1. The combination in a crimping-machine of the sliding cross-head, which carr'ies the crimping-jaws, with the tripping-rod, clutch, and system of gearing for transmitting motion to said cross-head, under the arrangementL substantially as described, whereby the movement of the cross-head may be reversed or arrested at pleasure, as set forth.

2. The arrangement ofthe reversing gears and clutch v by` which motion is communicated to the sliding crosshead with the large and small gear-wheels, which impart movement to said reversing gears, substantially as described, so that the cross-head shall be caused to ascend more-rapidly than it descends for the purposes stated.

3. The arrangement of the crimping-jaws upon two axes, the one horizontal the other vertical, substantially in the manner sot forth, so that they may he tilted or rocked endwise to conform to the position of In conclusion-I would say that, while I have here ously modified without departure from -the principle the crimping-form, and may also vibrate upon a vertical axis to allow for inequalities in the material to be crimped.

4. rlhe employment with the laterallywibrating jaws of stops or` set-screws to limit the vibration of the jaws and to hold them in close contactwith any portion of the leather to be crimped, substantially in the manner shown and set forth.

5. The construction and arrangement of the crimping-jaws, the set-screws and slotted pla-te by which it is supported, and the socketed plate and spindle by which said slotted plate is held in position, substantially as shown and set forth.

G. The combination with the crimping-jaws of the double helical cam-disks, the brackets provided with corresponding cams and the set-screws or spindles and nuts for maintaining said parts in position, under the arrangement substantially as described, so that the jaws may be set and heid at a greater oriess distance apart to conform to the thickness of the material to be crimped.

T. The employment in a crimping-machine of an adj nstable form or tree, arranged so that the toe can be more or less elevated, in order to crimp at various angles according to the shape of the leather or other material operated on.

S. The combination with the adjustable tree or form of crimping-jaws oscillating in a plane parallel with the tree, so that said jaws may be adjusted to conform to whatever position tha tree may occupy, as set forth.

9. The arrangement of the adjustable tree or form so that it shall move in the are of a circle, of which the pivot or point of oscillation ofthe crimping-jaws is the center, substantially as set forth.

V10. The employment with the tree or crimping-form of laterally self-adjusting brackets for supporting,r the same, substantially as described, so as to, equalize or distribute evenly the pressure of the jaws upon the leather ou both sides of the form.

11. The combination withi thc'crimping-jaw of' the sliding clamp or corner-stretcher and lever and cam for operating the same, substantially as set forth.

l2. rlhe combination with the hinged ways of a system of levers operated by atreadle or otherwise, to spread said ways so' as to relieve the pressure and strain of the jaws on the leather orform whenever necessary, substantially as shown and set forth. y j

13. The combination, with the hinged ways, of the set-screws and pointers or gauges, for limiting the movement and determining the parallelism ofthe ways, substantially as set forth.

In testimony whereof, I have signed my name to this specification before two subscribing witnesses.

lVitnesses: S. WT. JAMISON.

A. PoLLoK, WM. H. McCann. 

